Where is the answer to this question
Both presidentialism and parliamentarism are unequivocally democratic, but each of these regimes leads to different political consequences.
The great difference is that in parliamentarism the executive branch is composed of a president or a monarch, head of state, with limited powers, and a government appointed by Parliament, which at any time can censor. In presidentialism, however, the head of state and government coincide in the same person, are not subject to parliamentary censure and the Legislative Branch is limited to the area of law making.
Therefore, in presidentialism, voters elect the head of government (who in turn is head of state); instead, in parliamentarism, the head of government is appointed by the head of state, who is voted by the people.
The enactment of the Clean Air Act of 1970 (1970 CAA) resulted in a major shift in the federal government's role in air pollution control. This legislation authorized the development of comprehensive federal and state regulations to limit emissions from both stationary (industrial) sources and mobile sources.
UN Peace and Security Over the decades, the UN has helped to end numerous conflicts, often through actions of the Security Council - the organ with primary responsibility, under the United Nations Charter, for the maintenance of international peace and security.
The Department of Peacekeeping Operations provides political and executive direction to UN peacekeeping operations, and maintains contact with the Security Council, troop and financial contributors, and parties to the conflict in the implementation of Security Council mandates.
This is all I had in mind. Hope it helped, Jon.